Drill all 54 until you don't have to think about them.
the build-run-break-fix loop, wired to muscle
macOS-only (there is no Windows Xcode, so the win column mirrors mac); the ⌘2–⌘9 navigator-pane numbers are omitted because their mapping drifts across Xcode versions, and generic OS chords (copy/paste/undo/save) are left out.
Level 1 free · no account · runs in the browser
Every deck is graded 1 to 6: level 1 is the reflex core, the top level is where the specialists live. One move from each, so you can see how far it goes.
Build and launch the current app in the simulator or on device
The whole point of the editor is one keystroke away from running.
…and 2 more at this level
Run the unit and UI test suite
The green-bar reflex; used often enough that ⌘T-era muscle memory is worth retraining.
…and 9 more at this level
Launch the app under Instruments to profile performance
One key from code to a time profile or leaks trace.
…and 13 more at this level
Re-run the app using the existing build, skipping compilation
Skips a needless recompile when only runtime state changed.
…and 13 more at this level
Build the test targets without running them
Compiles tests up front so the run itself is instant.
…and 9 more at this level
Insert a documentation comment stub above a declaration
Scaffolds the parameter and return tags so you only fill in prose.
…and 2 more at this level
How graduation works. Drill until every move in the deck holds at ≥95% first-try, under 800ms median, across two separate days. Then the deck is done — and you get a certificate stating exactly that, plus a LinkedIn credential in one click.